摘要
1998年 10～ 12月 ,对体重为 5 4 .5 9(± 2 .37) g的亲蟹在 2 0 (± 0 .5 )℃温度条件下进行饥饿实验 ,研究了饥饿对中华绒螯蟹亲蟹代谢的影响 .结果表明 ,经过 30d的饥饿处理 ,亲蟹的耗氧率降低为摄食状态的 5 0 .0 % ;CO2 排出率减小为摄食状态的 6 3.4 % ;NH3 N排泄率减小为 5 9.1% .耗氧率和CO2 排出率、NH3 N排泄率的变化差别较大 ,耗氧率的减小可分为 4个阶段 ,而CO2 排出率和NH3 N排泄率的减小仅可分 3个阶段 .与此同时 ,亲蟹的标准代谢水平同样受到饥饿的影响 ,饥饿 30d后 ,由 4 .4 5J·g-1·h-1减小为 2 .36J·g-1·h-1;在饥饿亲蟹的代谢中 ,脂肪消耗最多 ,其次是碳水化合物 .
The experiment was conducted to study the influence of starvation on the metabolism of parent Chinese mitten handed crab ( Eriocheir sinensis ) with weights of 54.59(±2.37)g under 20(±0.5)℃ during Oct. to Dec., 1998. The results showed oxygen consumption, CO 2 production and ammonia N excretion of the parent crab being starved for 30 days were 50.0%, 63.4%, and 59.1% of those of the fed crab, respectively. The course of oxygen consumption reduction could be divided into four phases: 1) from the 1st day to the 6th day, the metabolic rate decreased remarkably; 2) from the 7th day to the 15th day, the metabolic rate kept relatively stable; 3) from the 16th day to the 25th day, the metabolic rate decreased markedly again; and 4) from 26th day to 30th day (the end time of the experiment), the metabolic rate decreased most dramatically. There were only three phases during the course of CO 2 production and ammonia N excretion reduction. Meanwhile, the standard metabolism of the starved crab reduced from 4.45 to 2.36J·g -1 ·h -1 , and lipid was used as the first energy source in the course of starvation.
出处
《应用生态学报》
CAS
CSCD
2002年第11期1441-1444,共4页
Chinese Journal of Applied Ecology
基金
国家自然科学基金项目 (3 9770 5 78)
高等学校骨干教师资助计划项目
高等学校博士点专项基金资助项目 (2 0 0 0 2 690 3 ) .
关键词
中华绒螯蟹
亲蟹
饥饿
代谢
Parent Eriocheir sinensis , Starvation, Metabolism.
